IT Media site had the opportunity to run GPU-Z, CPU-Z and Crysis Benchmark on the GTX 280 demo system. From the photos, we can clearly see that NVIDIA GTX 280 presentation system used Intel Core 2 Quad four-core processor, the frequency is 2.66GHz, the Crysis Benchmark with 1920 x1200 VeryHigh settings indicated that the average fps of GTX 280 graphics card reached 36.81!

Crysis benchmark should display the renderer in the top-left corner, like oZone3D.Net GPU benchmarks do. That would have been the proof the renderer used is a geforce gtx 280: